FAQ: Why there is port number in the ICMP of firewall’s Session table?

Publication Date: 2012-09-12Views: 227Downloads: 0

Issue Description

Use the command “display fire wall session table” check the entry below:
icmp: 162.105.10.22:512 <-- 162.105.10.25:512
From above it can be seen that there is port number 512 in Layer 3 protocol’s ICMP.

Alarm Information

None.

Handling Process

Because there is no conception of port number to ICMP, so the record in ICMP conversation is ICMP ID.